Ink roller cleaning device



April27,1937.

R. A. KRAHMER INK ROLLER CLEANING DEVICE Filed Oct. 26, 1954 2Sheets-Sheet l d mm INVENTOR.

April 27, 1937. R. A. KRAHMER INK ROLLER CLEANING DEVICE Filed Oct. 26,1934 2 Sheets-Sheet 2 INVENTOR.

Patented Apr. 27, 1937 UNITED STATES PATENT OFFICE INK ROLLER CLEANINGDEVICE Application October 26, 1934, Serial No. 750,223

3 Claims.

This invention relates to a mechanism for use in cleaning the inkedsurface of ink rollers in a printing machine of the rotary type, andmore particularly to a cleaning mechanism which is secured to themachine and is adapted to be moved into an operative position or out ofan operative position as desired, and is adapted to be clamped in eitherof said positions.

With the device fitted to engage one of the rollers of an inkingmechanism, all of the coacting rollers may be cleaned of ink after a runof printing is finished by applying a suitable ink .solvent to one ofthe rollers, then running the press for a short while to soften the ink,and then adjusting the blade of the cleaner to engage the roller, whencontinued operation of the press will effect removal ofink from all ofthe coacting rollers.

One object of the invention is to provide a roll cleaning mechanismwhich can be quickly shifted from an inoperative to an operativecleaning position by means of a hand lever, and providing further meansto clamp said lever in a locked position after shifting same.

Another object is to provide a roll cleaning mechanism of generallyimproved construction, whereby the device will be simple, durable andinexpensive in construction, as well as convenient, serviceable andeficient in its use.

With the foregoing and other objects in view which will appear as thedescription proceeds,

the invention resides in the combination and arrangement of parts, andin the details of construction hereinafter described.

L The preferred embodiment of the invention is illustrated in theaccompanying drawings, wherein:

Figure 1 is a view looking toward one end of an ink roller and showing afront elevation of J a support and lever, with a roll engaging blade andan ink receiving trough shown in an operative position;

Figure 2 is a side elevational view of the support and lever taken inthe direction of the arrow 2 of Figure 1 and includes a fragmentaryportion of one end of the trough and its supporting shaft;

Figure 3 is a view similar to Figure 1, showing a modified arrangementwherein the supports 53 are suspended from a tie-rod and in which theconstruction and position of the roll engaging blade and trough are alsomodified; and

Figure 4 is a side view of Figure 3 looking in the direction of thearrow 4.

Referring to Figures 1 and 2, a fragment of an ink distributing rolleris shown at I! and a fragment of the printing machine frame is shown atI2. A support member or bracket I3 has one end bolted to the machineframe as by means of bolts I 4 and has a bearing 15 formed at theopposite end thereof. Another support is mounted on the frame on theopposite side of the machine, but since it is identical to the supportl3 it has not been shown. A shaft I6 is rotatably mounted in thebearings l 5 of both supports and has one end extending beyond thebearing shown in Figure 2. A lever ll has a hub portion 18 splined tothe extended end of the shaft and an elongated boss l9 extending beyondeach side edge thereof, within which an arcuate slot 2| is provided.Above said boss, a hand grip extension 22 is provided to manually rocksaid lever, and a clamping member 23 is also provided to clamp the leverin any desired position. Said clamping member comprises a screw 24,which is adapted to screw into a screw threaded opening 25 in a boss 26on the support l3, and has a flange 2'! thereon, which is adapted toclamp against the outer surface of the boss l9 on the lever ll, when thescrew is rotated inward by means of the T shaped handle 28, which formsan integral part of said clamping member.

A bracket or block 29 is splined to the shaft [6 at the inner. sides ofthe bearings l5 of each end support [3 and has one fiange 3! of a 2 bar32 bridged across one fiat upper surface on each bracket and is securedthereto by means of bolts 34. An intermediate web 33 rests against onefiat side surface of the bracket 23, which combined with another flange35 of said bar provides a suitable trough when arranged in the mannershown in Figure 1. Combined with said Z bar 32 is an ink removing blade36, which is clamped between strips 3l31 and the whole is clamped withina cavity 38 in a clamping plate 39, the latter being secured to the 2bar 32 by means of bolts 4|.

From the foregoing description and drawings, it will be seen that asimple structure has been provided and that the arrangement provides fora quick adjustment of the ink removing blade and trough from anoperative to an inoperative position on the reverse, by backing off theclamp member 23 and swinging the lever I! about its axis to the desiredposition, then tightening the clamping member. When the lever is in theposition shown in Figure 1, the blade 36 is in wiping engagement withthe roller H and the 2 bar is placed in a position which causes a Vshaped trough to be formed by the web 33 and flange 35 directly beneaththe said wiping blade.

In the modified arrangement shown in Figures 3 and 4, the supportingstructure is shown suspended from a tie-rod 42, which is joined to wingsextending from the machine frame, one of which Wings is shown at 43.Said structure includes end supporting arms 44, splined to each end ofthe tie-rod 42, there being only one arm shown in the drawings since theother is similarly arranged,

which arms are provided with bearing prtions 45 at their lower ends. Ashaft 46 is rotatably mounted in said bearings and has one end extendingbeyond the bearing shown in .Figure 4. A lever 41 has a hub portion 48intermediate its ends, which is splined to the shaft 45, the lowerm'ember of said ends being formed to provide a hand grip 49 while theupper end has an elongated boss formed thereon and an arcuate-slot 52within said boss. Clamping means is also provided to clamp the lever 47in any desired position, which means comprises a stud 53, secured withinthe arm 44 and projecting through the slot 52 in the lever '41. A wingnut 54 is adapted to be screwed on a threaded extension 55 of said stud,and when tightened thereon will clamp the elongated boss 5| of the leveragainst the arm 44.

Brackets 56 are splined to theshaft 46, at the inner sides of thebearings 45 of each support arm 44, and have one flange of an anglebar51 bridged across same and secured thereto by means of bolts 58.Combined with said angle bar is an ink removing blade 59 which isclamped between strips 6l6'l and the whole is clamped within a cavity 62in a clamping plate '39, the latter being secured to the under surfaceof the bridging flange of the angle bar 5 by means of screws 63. Theangle bar '51 is so arranged, that when the blade 59 is in an inkremoving position against the roller Ha, it forms a V shaped trough1to1receive the ink which is removed from the said roller.

In general, the modified supporting structure shown in Figures 3 and 4is similar to the structure shown in Figures 1 and '2 and has a quickacting clamping arrangement which is operated in a manner similar to theclamping arrangement provided for the structure of Figures '1 and 2.There is one additional feature provided in the modified structurehowever, which includes a clamping lever .64 provided at the end of thetierod 42. .Said lever has a screw threaded opening 65 in a boss portion66, which is adapted .to be engaged by .a threaded end '61 of thetie-rod. By means of said clamping lever, the rod is adapted to be drawnup to clamp the support arm 44 against the boss at the end of wing 43,and when said clamping lever is backed off, the tie-rod will be free torotate, thus permitting the arms 44 to be moved about the axis of thetie-rod to a point a greater distance from the ink roller Ha than thedistance provided by the movement of the lever 41.

It will be understood that the invention may be embodied in otherspecific forms without departing from the spirit or essential attributesthereof and it is therefore desired that the present embodiment beconsidered in all respects as illustrative and not restrictive,reference being had to the claims-rather than to the foregoingdescription to indicate the scope of the invention.

What I claim is: 1. In a mechanism for cleaning or removing ink fromthelower side of an ink cylinder of a printing machine, an inkreceptacle comprising a 2 bar and an ink blade connected thereto to forman open ended memberhaving a substantially U- shaped cross section,supporting brackets secured to the frame of the machine arranged forpivotally supporting the member beneath the cylinder, and means to swingthe member in one direction to bring the blade into contact with thecylinder to remove ink therefrom and conduct it to the receptacle, andto swing the member in another direction to disengage the blade from thecylinder.

2. In a mechanism for cleaning ink rollers on a printing machine, endsupports, a shaft rotatably mounted in said'supports, brackets securedto said shaft, a 2 bar and a roll engaging blade secured to saidbrackets and arranged so that the Z bar will provide a trough beneaththe "blade when in an operative position, alever secured to said shaftand adapted to rock same and move the blade and trough to an operativeor inoperative position, and'a'clamping member adapted to lock saidlever in any desired position.

3. In a mechanism for cleaning ink rollers in a printing machine, endsupports, each having one end secured to the machine and a bearing atanother end thereof, a shaft rotatably mounted in said bearings,brackets secured to said shaft, a 2 bar and a roll engaging bladesecured to said brackets and arranged so that the Z bar will pro vide atrough beneath the blade when in an operative position, a lever securedto said shaft and adapted to rock same and move the blade to anoperative or an inoperative position,and a clamping member adapted tolock said lever in any desired position.

RICHARD A. KRAHMER.

